 \begin{tabular}{l*{2}{c}} \hline \hline \\ & \multicolumn{1}{c}{Top Colleges} & \multicolumn{1}{c}{Not-Top Colleges} \\ \cmidrule(l){2-2} \cmidrule(l){3-3} 
\\
Log(gdppw)      &    0.150\sym{***}&    0.204\sym{***}\\
                &  (0.045)         &  (0.038)         \\
\\ \hline \noalign{\smallskip} 
Baseline correlation with z&                  &     0.97         \\
Baseline correlation with q&                  &     0.97         \\
GDPPW correlation with z&                  &     0.71         \\
N               &       43         &       46         \\
Adjusted R$^2$  &     0.20         &     0.39         \\
 \hline \hline \noalign{\smallskip} \end{tabular} 
